2009 HONDA CIVIC HYBRID sensor

Press the OFF button. However, a
lack of airf low can cause the
windowstofogup.Youshouldkeep
the fan on at all times so stale air and
moisture do not build up in the
interior and cause f ogging.To regulate the interior temperature
and humidity, the climate control
system has two sensors. A sunlight
sensor is located in the top of the
dashboard and a temperature/
humidity sensor is next to the
steering column. Do not cover the
sensors or spill any liquid on them.
To Turn Everything Off
Sunlight, Temperature, and
Humidity Sensors
Climat e Cont rol
Features
109
TEMPERATURE/HUMIDITY SENSOR
SUNLIGHT SENSOR
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2009 Civic Hybrid

Store or secure all items that could
be thrown around and hurt
someone during a crash.Distribute cargo evenly on the
f loor of the trunk, placing the
heaviest items on the bottom and
as far forward as possible.
Do not put any items on the rear
shelf that could cover the IMA
battery air intake. They can block
your view, or be thrown around
the vehicle during a crash.
The air intake for the IMA battery
and electronics is located on top of
the rear shelf . Do not block this air
intake; it may cause the IMA battery
and the power control unit to
overheat, causing the IMA system to
shut down. It will start working again
af ter it cools.
Be sure items placed on the f loor
behind the f ront seats cannot roll
underneath and interf ere with the
proper operation of the seats, the
sensors under the seats, or the
driver’s ability to operate the
pedals. If you carry large items that
prevent you f rom closing the trunk
lid, exhaust gas can enter the
passenger area. To avoid the
possibility of carbon monoxide
poisoning, f ollow the instructions
on page .
Keep the glove box closed while
driving. If it is open, a passenger
could injure their knees during a
crash or sudden stop. 52
CONT INUED
Air Intake
Carrying Cargo in the T runk
Carrying Items in the Passenger
Compartment
Carrying Cargo
Bef ore Driving
267
AIR INTAKE
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When the low tire pressure indicator
is on, one or more of your tires is
signif icantly underinf lated. You
should stop and check your tires as
soon as possible, and inflate them to
the proper pressure as indicated on
the vehicle’s tire inf ormation placard.
If you think you can saf ely drive a
short distance to a service station,
proceed slowly, and inf late the tire to
the recommended pressure shown
on the driver’s doorjamb.
If the tire is f lat, or if the tire
pressure is too low to continue
driving, replace the tire with the
compact spare tire (see page ).
If you cannot make the low tire
pressure indicator go out af ter
inf lating the tires to the specif ied
values, have your dealer check the
system as soon as possible.Driving on a signif icantly under
inf lated tire causes the tire to
overheat and can lead to tire failure.
Underinf lation also reduces f uel
efficiency and tire tread life, and may
af f ect the vehicle’s handling and
stopping ability.
Becausetirepressurevariesby
temperature and other conditions,
the low tire pressure indicator may
come on unexpectedly.
Each tire has its own pressure
sensor (not including the spare tire).
If the air pressure of a tire becomes
signif icantly low while driving, the
sensor in that tire immediately sends
a signal that causes the low tire
pressure indicator to come on.
Your vehicle is equipped with a tire
pressure monitoring system (TPMS)
that turns on every time you start the
engine and monitors the pressure in
your tires while driving.
324
U.S. models onlyLow Tire Pressure
Indicator
Tire Pressure Monitoring System (TPMS)
282
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2009 Civic Hybrid

As required by the FCC:This device complies with Part 15 of theFCC rules. Operation is subject to thef ollowing two conditions: (1) This devicemay not cause harmf ul interf erence, and(2) this device must accept anyinterf erence received, includinginterf erence that may cause undesiredoperation.
Changes or modif ications not expresslyapproved by the party responsible f orcompliance could void the user’sauthority to operate the equipment.
This device complies with IndustryCanada Standard RSS-210.Operation is subject to the f ollowing twoconditions: (1) this device may not causeinterf erence, and (2) this device mustaccept any interf erence that may causeundesired operation of the device.
If you have a f lat tire, the low tire
pressure indicator will come on.
Replace the flat tire with the
compact spare tire (see page ).
Each wheel (except the compact
sparetirewheel)isequippedwitha
tire pressure sensor mounted inside
the tire behind the valve stem. You
must use TPMS specif ic wheels. It is
recommended that you always have
your tires serviced by your dealer or
qualif ied technician.
After you replace the flat tire with
thecompactsparetire,thelowtire
pressure indicator stays on. This is
normal; the system is not monitoring
the spare tire pressure. Manually
check the spare tire pressure to be
sure it is correct. Af ter several miles
(kilometers) driving with the
compact spare tire, the TPMS
indicator comes on and the low tire
pressure indicator goes of f . The low tire pressure indicator or
the TPMS indicator will go off, after
several miles (kilometers) driving,
when you replace the spare tire with
the specif ied regular tire equipped
with the tire pressure monitor sensor.
Never use a puncture-repairing agent
in a f lat tire. If used, you will have to
replace the tire pressure sensor.
Havetheflattirerepairedbyyour
dealer as soon as possible.
324
Changing a T ire with T PMS
Tire Pressure Monitoring System (TPMS)
284
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2009 Civic Hybrid

If your seat belts get dirty, use a sof t
brush with a mixture of mild soap
and warm water to clean them. Do
not use bleach, dye, or cleaning
solvents. Let the belts air dry bef ore
you use the vehicle.
Dirt build-up in the loops of the seat
belt anchors can cause the belts to
retract slowly. Wipe the insides of
the loops with a clean cloth
dampened in mild soap and warm
water or isopropyl alcohol.If you use non-Honda f loor mats,
make sure they f it properly and that
theycanbeusedwiththefloormat
anchors. Do not put additional f loor
mats on top of the anchored mats.
The driver’s f loor mat that came
with your vehicle hooks over the
f loor mat anchors. This keeps the
f loor mat f rom sliding f orward and
possibly interf ering with the pedals
or making the f ront passenger’s
weight sensors inef f ective.
If you remove the driver’s f loor mat,
make sure to re-anchor it when you
putitbackinyourvehicle.
Cleaning the Seat Belts, Floor Mats
Floor Mats
Cleaning the Seat Belts
Maint enance
311
LOOP
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2009 Civic Hybrid

The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our systems work
together to control the engine’s
combustion and minimize the
amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.The emissions control systems are
designed and certif ied to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Honda replacement parts or their
equivalent f or repairs. Using lower
quality parts may increase the
emissions f rom your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.
The PGM-FI system uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
f uel to inject under all operating
conditions. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manif old. Adding exhaust gas to the
air/f uel mixture reduces the amount
of NOx produced when the f uel is
burned.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), nitrogen
(N ), and water vapor.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
358
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